Eccoptopterus Motschulsky, 1863

Smith, Sarah M., Beaver, Roger A. & Cognato, Anthony I., 2020, A monograph of the Xyleborini (Coleoptera, Curculionidae, Scolytinae) of the Indochinese Peninsula (except Malaysia) and China, ZooKeys 983, pp. 1-442 : 1

Eccoptopterus Motschulsky, 1863

Eccoptopterus Motschulsky, 1863: 515.

Platydactylus Eichhoff, 1886: 25. Preoccupied by Goldfuss 1820.

Eurydactylus Hagedorn, 1909: 733. (new name for Platydactylus Eichhoff, 1866 nec Goldfuss 1820). Synonymy: Hagedorn 1910b: 110.

Type species.

Eccoptopterus sexspinosus Motschulsky, 1863 = Scolytus spinosus Olivier, 1800; monotypy.

Diagnosis.

2.5-4.2 mm and stout (2.06-2.3 × as long as wide). Eccoptopterus is distinguished by the robust pronotum which is almost as large or larger than abdomen; pronotal base bearing a dense tuft of setae; pronotal disc asperate; elytra excavated with denticles around the margins and by the metatibiae conspicuously enlarged and flattened. In addition, the scutellum is flush with elytra and flat, and procoxae are contiguous.

Similar genera.

Eccoptopterus is morphologically very distinctive and is not similar to other genera.

Distribution.

Throughout the tropical regions of Africa and Asia to New Guinea, Australia, the Solomon Islands and Samoa.

Gallery system.

The radial entrance gallery leads to several branches in various planes, not penetrating more than 3-4 cm. In small diameter stems, the branches may be longitudinal. Enlarged brood chambers are absent.